Kaiō Hiroyuki
Japanese sumo wrestler
魁皇博之 · 魁皇 博之
- Born
- 24 July 1972, Nōgata-shi
- Citizenship
- Japan
- Sport
- sumo
- Occupation
- rikishi
- Height
- 185 cm (6 ft 1 in)
- Weight
- 170 kg (375 lb)
Kaiō Hiroyuki (born 24 July 1972 as Hiroyuki Koga) is a former professional sumo wrestler from Nōgata, Fukuoka, Japan.
He made his debut in 1988, reaching the top makuuchi division in 1993. He held the second highest rank of ōzeki or champion for eleven years from 2000 to 2011, and is the longest-serving ōzeki of all time in terms of number of tournaments fought.
In his career, Kaiō won five top division yūshō or tournament championships, the last coming in 2004. This is the modern record for someone who has not ultimately made the top rank of yokozuna. He was a runner-up in eleven other tournaments, and also won 15 sanshō or special prizes, the third highest ever.
External links
Facts from Wikidata Q221187 (CC0); quoted introduction from English Wikipedia (CC BY-SA 4.0). Data retrieved 2026-10-22.
Data: Wikidata (CC0 1.0); Wikipedia (English) (CC BY-SA 4.0). Retrieved 2026-10-22.